[TRNSYS-users] Gain differences

[Masood Mobarak]

Dear Marion,

thank you for your answer.

When I define a gain from the gain type manager then i deactivate the radiative part.
So the wall gain from an inside wall should be same as a gain from the gain type manager ?

Kind regards,

Masood Mobarak
--------------------------------------------
Marion Hiller <Hiller at Transsolar.com> schrieb am Do, 6.11.2014:

 Betreff: Re: [TRNSYS-users] Gain differences
 An: "TRNSYS users mailing list at OneBuilding.org" <trnsys-users at lists.onebuilding.org>
 Datum: Donnerstag, 6. November, 2014 17:08 Uhr
 
 Dear Masood,
 
 a wall gain is gain into
 surface node of a wall.
 
 Gain defined by the gain type amanger consists
 of convective part which
 is transferred
 immediately to air node and a radiative part which is
 distributed to all surfaces of the zone.
 Thus they can't have the same impact on the
 air temperature.
 For checking a balance you
 can use the balance output.
 
 Marion
 ________________________________________
 Von:
 TRNSYS-users [trnsys-users-bounces at lists.onebuilding.org]"
 im Auftrag von "Masood Mobarak [masood.mobarak at yahoo.com]
 Gesendet: Donnerstag, 6. November 2014 09:16
 Bis: TRNSYS users mailing list at
 OneBuilding.org
 Betreff: [TRNSYS-users] Gain
 differences
 
 Dear all,
 
 i have two question about gain
 and i didnt find any answer in the manuals:
 
 1. What is the difference
 between gain from a wall and gain from gain type manager
 ?
 
 When I activate a suface
 gain inside a wall the temperature of my room rises for
 example 5°C but when i activate gain from the gain type
 manager the temperature rises 10°C although the gain have
 the same value.
 
 2. I am
 trying to understand TRNSYS better. When I activate a gain
 the temperature rises for example 10°C.
 I
 want to check if the result is correct so I calculate the
 heat that is necessary to rises the temperature for 10°C
 with the following formula:
 
 Q = A*u*delta T
 
 I calculate the heat for all walls and the sum
 of them must be the gain value.
 
 Thank you for your help.
 
 Kind regards,
 
 Masood Mobarak
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